CN102446040A - Resistance type touch control panel - Google Patents
Resistance type touch control panel Download PDFInfo
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- CN102446040A CN102446040A CN201010502583XA CN201010502583A CN102446040A CN 102446040 A CN102446040 A CN 102446040A CN 201010502583X A CN201010502583X A CN 201010502583XA CN 201010502583 A CN201010502583 A CN 201010502583A CN 102446040 A CN102446040 A CN 102446040A
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Abstract
The invention discloses a resistance type touch control panel, which comprises a tactile sensing plate, a transparent conductive layer, a ring-shaped metallic layer and a transparent thin film layer, wherein the tactile sensing plate comprises a substrate plate, a touch control component and an insulating layer; the touch control component is arranged on the substrate plate; the insulating layer is arranged on the touch control layer; the transparent conductive layer is completely covered on one surface of the insulating layer; the ring-shaped metallic layer is arranged on the transparent conductive layer, and the two layers are together coupled to a grounding end; and the transparent thin film layer is arranged on one side of the substrate opposite to the touch control component, and has a quarter-wave optical thickness and a refractive index smaller than that of the substrate plate.
Description
Technical field
The present invention relates to a kind of contact panel, and particularly relate to a kind of capacitance type touch-control panel.
Background technology
Capacitance type touch-control panel disposes two groups of orthogonal patterned electrodes on single layer substrate or double layer substrate; When electrified body (as finger) can be taken away the change that electric current slightly causes capacitance during near patterned electrodes, just and controller is learnt the position at touch points place through the change of capacitance.Touch-control display panel then is that LCD and contact panel are fitted together; When the user has contacted the graphic button on the screen; Haptic feedback system on the screen can drive various hookup mechanisms according to the formula of programming in advance; Can be in order to the push button panel of dessert machine tool formula, and produce lively visual and sound effects through display frame.
Because above-mentioned projected capacitive touch panel still can't be exempted electromagnetism and high frequency interference fully, therefore must be from the design of strengthening of panel and controller aspect.In addition; LCD screen mainly is to drive with AC power; The variation that also can cause contact panel inductance capacitance value when the intensity and the variation of direction generating period property of alternating current; And the generation misoperation in order to solve the problem that noise disturbs, can add one deck usually and prevent that by the made screen layer of indium tin oxide (Shieldinglayer) mutual noise from disturbing between contact panel and LCD.
Yet; Promote the effect of interference resistant like desire; Usually thickness that can be through increasing screen layer is to reduce its resistance value; But have other problems in response to and give birth to, the for example penetrance of contact panel decline, plated film time lengthening, the control of plated film manufacture craft such as are difficult at shortcoming, can reduce display quality on the contrary and improve manufacturing cost.
Summary of the invention
The object of the present invention is to provide a kind of capacitance type touch-control panel, set up the low-resistance annular metal layer of a circle at the transparency conducting layer edge, neither influence transmittance and can noise more promptly be connected to earth terminal again.
According to an aspect of the present invention, propose a kind of capacitance type touch-control panel, comprise tactile feel drafting board, transparency conducting layer, annular metal layer and transparent thin film layer.The tactile feel drafting board comprises substrate, touch control component and insulation course.Touch control component is arranged on the substrate.Insulation course is arranged on the touch control component.Transparency conducting layer is covered on the insulation course all sidedly.The annular metal layer is formed on the transparency conducting layer, and is coupled to earth terminal jointly with transparency conducting layer.Transparent thin film layer is arranged on the substrate in contrast to a side of touch control component, has quarter-wave optical thickness and less than the refractive index of substrate refractive index.
For letting the foregoing of the present invention can be more obviously understandable, hereinafter is special lifts a preferred embodiment, and cooperates appended accompanying drawing, elaborates as follows:
Description of drawings
Fig. 1 is the side view of a kind of capacitance type touch control display panel of preferred embodiment of the present invention;
Fig. 2 A is the vertical view of a kind of capacitance type touch-control panel of preferred embodiment of the present invention;
Fig. 2 B is the upward view of a kind of capacitance type touch-control panel of preferred embodiment of the present invention;
Fig. 2 C is the stereographic map of a kind of capacitance type touch-control panel of preferred embodiment of the present invention;
Fig. 2 D is the cut-open view along the capacitance type touch-control panel of the profile line 2D-2D ' incision of Fig. 2 C;
Fig. 3 A is the test result figure of contact panel of the present invention;
Fig. 3 B is the test result figure of the contact panel of control group.
The main element symbol description
100: capacitance type touch control display panel
110: display module
120: contact panel
121: decorative layer
122: the tactile feel drafting board
124: transparency conducting layer
126: the annular metal layer
128: protective seam
130: transparent thin film layer
Embodiment
Preferred embodiment of the present invention discloses a kind of capacitance type touch control display panel, sets up the low-resistance annular metal layer of a circle at the transparency conducting layer edge, neither influences penetrance and can noise more promptly be connected to earth terminal again.
Please with reference to Fig. 1, it illustrates the side view according to a kind of capacitance type touch control display panel of preferred embodiment of the present invention.The capacitance type touch control display panel 100 of present embodiment comprises display module 110 and is arranged at the contact panel 120 on the display module 110 that wherein display module 110 can be LCD MODULE or other display modules.With the LCD MODULE is example; Backlight module provides light source; Light penetrates away through pixel substrate, liquid crystal layer and colored filter substrate; Chip for driving changes the anglec of rotation that pixel voltage can be adjusted liquid crystal molecule, controls the light and shade color of each pixel thus and constitutes lively display frame; Because chip for driving or cabling are all lighttight material and can stop backlight penetrating, can be arranged at usually around the viewing area, on product casing also can with opaque frame (as Fig. 2 A 121) hide these internal wirings.
Please with reference to Fig. 2 A～Fig. 2 C; Fig. 2 A illustrates the vertical view according to a kind of capacitance type touch-control panel of preferred embodiment of the present invention; Fig. 2 B illustrates the upward view according to a kind of capacitance type touch-control panel of preferred embodiment of the present invention; Fig. 2 C illustrates the stereographic map according to a kind of capacitance type touch-control panel of preferred embodiment of the present invention, and Fig. 2 D illustrates along the cut-open view of the capacitance type touch-control panel of the profile line 2D-2D ' incision of Fig. 2 C.Be noted that these a little diagrams are not drawn according to actual ratio for clear each element of drafting and formed.Contact panel 120 comprises tactile feel drafting board 122, transparency conducting layer 124, annular metal layer 126 and protective seam 128, and wherein tactile feel drafting board 122 is made up of transparent overlay and the touch control component and the insulation course that are disposed in regular turn on the transparent overlay.Tactile feel drafting board 122 can have decorative layer 121, in order to hide the chip for driving or the cabling of contact panel 120, shown in Fig. 2 A.In addition for improving the anti-reflection effect of contact panel 120; More dispose the surface of transparent thin film layer 130 in transparent overlay in contrast to touch control component; Wherein the optical thickness of transparent thin film layer 130 is a quarter-wave; And the refractive index of transparent thin film layer 130 is less than the refractive index of transparent overlay, and transparent overlay is a glass in this enforcement.
Please with reference to Fig. 2 C and Fig. 2 D, transparency conducting layer 124 is covered in the lower surface of contact panel 120 all sidedly, and the material of transparency conducting layer 124 can be indium tin oxide or other transparent conductive materials; Annular metal layer 126 is formed on the transparency conducting layer 124; Annular metal layer 126 preferably is formed at the edge of transparency conducting layer 124; Better is in the shading scope corresponding to decorative layer 121; Shown in Fig. 2 A and Fig. 2 B, owing to be to utilize touch-control display panel 100 just to be used for hiding the space of the decorative layer below of contact panel 120 internal wirings originally, and need not use the space of viewing area; Even if annular metal layer 126 is set, can not influence the aperture opening ratio of the touch-control display panel 100 of present embodiment yet.
Because the transparency conducting layer 124 as screen layer is coupled to earth terminal (not illustrating); For example be to be connected in the driving circuit pin or signal processing unit in order to ground connection with lead; The mode of its ground connection does not limit; And annular metal layer 126 is to be formed on the transparency conducting layer 124 to electrically conduct with it, so the annular metal layer of present embodiment 126 forms common grounds with whole transparency conducting layer 124, with the noise of shielding from display module 110.
Please with reference to Fig. 2 D; Protective seam 128 is covered in annular metal layer 126 surface; Protective seam 128 is made up of insulating material, for example is insulating gel, monox, liquid insulating material, transparent insulation material or other non-conductive materials, makes the annular metal layer 126 and the display module 110 of below be electrically insulated.
The annular metal layer of below enumerating several groups of experimental result proof present embodiments truly has the effect of shielding noise.The contact panel of present embodiment is coated with indium tin oxide layer and ring-type copper-foil conducting electricity, and copper thickness is about 3 μ m, and the contact panel of control group then only is coated with indium tin oxide layer.
The noise that waveform generator simulation display module produces connects the signal of 500mV to Copper Foil or indium tin oxide layer, and writes down the noise that two groups of contact panels are sensed.
Fig. 3 A is the test result of the contact panel of present embodiment, and Fig. 3 B is the test result of the contact panel of control group; The package number of transverse axis for receiving, the longitudinal axis is the amplitude of noise.Please be simultaneously with reference to Fig. 3 A, under identical interference source, the noise that the contact panel of present embodiment is sensed is between 188 to 187, and its amplitude is 1, and the noise that the contact panel of control group is sensed is between 187 to 182, and its amplitude is 5.Can demonstrate,prove thus, the contact panel of present embodiment through the Shielding Design of configuration annular metal layer 124 on the transparency conducting layer 124, can improve the effect of shielding noise.
The capacitance type touch-control panel that the above embodiment of the present invention disclosed has multiple advantages, below just lists and lifts the explanation of part advantage as follows:
1. present embodiment shields noise jointly through annular metal layer and whole 's transparency conducting layer, and the lower resistance value of design tool compared to existing single-layer shield layer can more promptly connect noise to earth terminal.
2. the annular metal layer of present embodiment is arranged at the space that touch-control display panel just was used for hiding the dark border below of display module internal wiring originally; Even if the annular metal layer is set, can not influence the aperture opening ratio and the penetrance of the touch-control display panel of present embodiment yet.
In sum, though combined an above preferred embodiment to disclose the present invention, it is not in order to limit the present invention.Be familiar with this operator in the technical field under the present invention, do not breaking away from the spirit and scope of the present invention, can do various changes and retouching.Therefore, protection scope of the present invention should with enclose claim was defined is as the criterion.
Claims (10)
1. capacitance type touch-control panel comprises:
The tactile feel drafting board comprises:
Substrate;
Touch control component is arranged on this substrate; And
Insulation course is arranged on this touch control component;
Transparency conducting layer is covered on this insulation course all sidedly;
The annular metal layer is formed on this transparency conducting layer, and is coupled to an earth terminal jointly with this transparency conducting layer; And
Transparent thin film layer is arranged on this substrate in contrast to a side of this touch control component, has quarter-wave optical thickness and less than the refractive index of this substrate refractive index.
2. capacitance type touch-control panel as claimed in claim 1, wherein the face impedance of this annular metal layer is less than 30 Ω.
3. capacitance type touch-control panel as claimed in claim 1, wherein the material of this annular metal layer is selected from the combination of silver, molybdenum, aluminium, copper, chromium or above-mentioned metal.
4. capacitance type touch-control panel as claimed in claim 1, wherein this annular metal layer is an elargol.
5. capacitance type touch-control panel as claimed in claim 1, wherein this annular metal layer is a copper-foil conducting electricity.
6. capacitance type touch-control panel as claimed in claim 1 also comprises a protective seam, is covered in this annular metal laminar surface.
7. capacitance type touch-control panel as claimed in claim 6, wherein this protective seam is made up of an insulating material.
8. capacitance type touch-control panel as claimed in claim 1, wherein the material of this transparency conducting layer is an indium tin oxide.
9. capacitance type touch-control panel as claimed in claim 1, wherein this substrate is a transparent overlay.
10. capacitance type touch-control panel as claimed in claim 1, wherein this tactile feel drafting board also comprises a decorative layer, is disposed at the periphery of this substrate, and wherein this annular metal layer is corresponding to the zone of this decorative layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010502583.XA CN102446040B (en) | 2010-10-11 | 2010-10-11 | Resistance type touch control panel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010502583.XA CN102446040B (en) | 2010-10-11 | 2010-10-11 | Resistance type touch control panel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102446040A true CN102446040A (en) | 2012-05-09 |
| CN102446040B CN102446040B (en) | 2015-02-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010502583.XA Expired - Fee Related CN102446040B (en) | 2010-10-11 | 2010-10-11 | Resistance type touch control panel |
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| Country | Link |
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| CN (1) | CN102446040B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105426028A (en) * | 2015-11-16 | 2016-03-23 | 珠海格力电器股份有限公司 | Touch equipment and electric appliance |
| CN106775065A (en) * | 2016-11-28 | 2017-05-31 | 昆山国显光电有限公司 | A kind of contact panel |
| TWI694293B (en) * | 2018-04-18 | 2020-05-21 | 友達光電股份有限公司 | Display device |
| WO2023142037A1 (en) * | 2022-01-29 | 2023-08-03 | 京东方科技集团股份有限公司 | Touch-control panel and touch-control apparatus |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2090967A1 (en) * | 2008-02-18 | 2009-08-19 | TPK Touch Solutions Inc. | Capacitive touch panel |
| CN101576793A (en) * | 2009-01-12 | 2009-11-11 | 深圳市中显微电子有限公司 | Capacitance touch screen and preparation method thereof |
| CN201465086U (en) * | 2009-07-03 | 2010-05-12 | 深圳市汇顶科技有限公司 | Anti-interference capacitive touch screen and electronic device |
| CN101819480A (en) * | 2009-02-26 | 2010-09-01 | 佛山市顺德区汉达精密电子科技有限公司 | Display device and touch control module thereof |
-
2010
- 2010-10-11 CN CN201010502583.XA patent/CN102446040B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2090967A1 (en) * | 2008-02-18 | 2009-08-19 | TPK Touch Solutions Inc. | Capacitive touch panel |
| CN101576793A (en) * | 2009-01-12 | 2009-11-11 | 深圳市中显微电子有限公司 | Capacitance touch screen and preparation method thereof |
| CN101819480A (en) * | 2009-02-26 | 2010-09-01 | 佛山市顺德区汉达精密电子科技有限公司 | Display device and touch control module thereof |
| CN201465086U (en) * | 2009-07-03 | 2010-05-12 | 深圳市汇顶科技有限公司 | Anti-interference capacitive touch screen and electronic device |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105426028A (en) * | 2015-11-16 | 2016-03-23 | 珠海格力电器股份有限公司 | Touch equipment and electric appliance |
| CN106775065A (en) * | 2016-11-28 | 2017-05-31 | 昆山国显光电有限公司 | A kind of contact panel |
| TWI694293B (en) * | 2018-04-18 | 2020-05-21 | 友達光電股份有限公司 | Display device |
| WO2023142037A1 (en) * | 2022-01-29 | 2023-08-03 | 京东方科技集团股份有限公司 | Touch-control panel and touch-control apparatus |
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| Publication number | Publication date |
|---|---|
| CN102446040B (en) | 2015-02-18 |
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